<template>
  <div class="home-brand container">
    <HomePanel title="热门品牌" sub-title="国际经典 品质保证">
      <template #right >
          <a @click="toggle(-1)" :class="{disabled:index===0}" href="javascript:;" class="iconfont icon-angle-left prev"></a>
          <a @click="toggle(1)" :class="{disabled:index===1}" href="javascript:;" class="iconfont icon-angle-right next"></a>
      </template>
      <div ref="target" class="box">
        <!-- 面板内容 -->
        <Transition name="fade">
          <ul v-if="list.length" class="brand-list" :style="{transform:`translateX(${-index*1240}px)`}">
            <li v-for="item in list" :key="item.id">
              <RouterLink to="/">
                <img v-lazy="item.picture" alt="">
              </RouterLink>
            </li>
          </ul>
          <ul class="ske-list" v-else>
            <li v-for="i in 5" :key="i">
              <XtxSkeleton bg="#e4e4e4" width="240px" height="305px" animated/>
            </li>
          </ul>
        </Transition>
      </div>
    </HomePanel>
  </div>
</template>
<script>
import HomePanel from './HomePanel.vue'
import XtxSkeleton from '@/components/library/xtx-skeleton.vue'
import { findBrand } from '@/api/home'
import { useLazyData } from '@/hooks'
import {ref} from 'vue'
export default {
  name: 'HomeNew',
  components: { HomePanel,XtxSkeleton },
  setup () {
    // 获取数据
    const target = ref(null)
    const result  = useLazyData(target,()=>findBrand(10))

    //切换效果 点击上下一页 两种结果0 1
    let index=ref(0)
    const toggle=(step)=>{
        const newIndex=index.value+step
        if(newIndex<0 ||newIndex>1) return
        index.value=newIndex
    }
    return { list: result, target,index,toggle }
  }
}
</script>
<style scoped lang="less">
@import '~@/assets/styles/variables.less';
.home-panel {
  background:#f5f5f5 ;
  .iconfont{
      width: 20px;
      height: 20px;
      display: inline-block;
      text-align: center;
      margin-left: 5px;
      color: #fff;
      background: @xtxColor;
      &::before {
        font-size: 12px;
        position: relative;
        top: -2px
      }
      &.disabled {
        background: #ccc;
        cursor: not-allowed;
      }
  }
  .box{
    width: 100%;
    height: 345px;
    overflow: hidden;
    .brand-list {
        width: 200%;
        display: flex;
        transition: all 1s;
        display: flex;
          li {
            margin-right: 10px;
            width: 240px;
            &:nth-child(5n) {
                margin-right: 0;
            }
            img {
                width: 240px;
                height: 305px;
            }
    }
    }
    .ske-list{
         display: flex;
         justify-content: space-between;
         height: 345px;
    }
 }
}
</style>